US Patent: 96,283
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| Cane Mill
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Patentees:
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| Henry B. Stevens (exact or similar names) - Buffalo, Erie County, NY |
| D. J. Powers (exact or similar names) - Madison, Dane County, WI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Oct. 26, 1869 |
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Joel Havens
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Description: |
| Abstract:
Our improvements are applied to vertical- roller cane-mills; and some of them consist in the adaptation to such mills of principles which have been secured to us in former Letters Patent by different arrangements to horizontal mills. These features are, first, wrought- iron strap-bolts around the bearing of the rollers; second, India-rubber springs or washers upon the strap-bolts to give elasticity to the main roller; third, the free removable scraper. The application of these features of invention to vertical-roller cane-mills has been attended with much difficulty, so as to derive from them advantages corresponding with those secured by their use in horizontal-roller mills. Thus, while it is a matter of comparative ease to make the rollers of horizontal mills adjustable with vertical mills, owing to their peculiarities of construction and action, the successful adaptation of self-adjustment to the rollers has been regarded as a problem nearly impossible to practically perform. This difficulty will be appreciated when it is considered that the power is applied directly to, the main roller, itself comparatively small, through a lever twelve or fourteen feet in length, and consequently a powerful leverage is exerted upon its bearings, thereby subjecting them to immense strain; and hence, though self-adjustment is all, the more necessary or desirable, yet it is much more difficult to apply the principle without disarrangement. Unless the canes are fed with great care and regularity, the mills frequently clog, and are very liable to break, without elasticity and self-adjustability; and since, in order to produce the requisite pressure, the rollers have to be keyed tip closely together in a rigid position, and all the strain, whether ordinary or excessive, from any special cause, has heretofore been resisted solely-by the cast-iron frame or housing which held the rollers, such material has furnished inadequate strength to avoid breakage; or, if the rollers are adjusted too far apart, they will not crush the cane sufficiently nor fully express the juice. This de- feet is increased in the vertical mills by the additional difficulty in feeding the canes regularly in the vertical opening between the rollers, the canes having a tendency to settle downward in a mass at the lower ends of the rollers.
Claim:
The turn-plate, constructed substantially as described, and arranged with its semicircular groove, and rod fitting therein, and the adjusting-screws, in combination with the minor rollers of the vertical cane-mill |
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